CODEWITHSUNDEEP
pythonterminalascii-art
jimmyc3po
jimmyc3po

Reputation: 471

Pyramid of asterisks program in Python

I've written a program in C++ that displays a pyramid of asterisk (see below) and now I'd like to see how it's done in Python but it's not as easy as I'd thought it would be.

Has anyone tried this and if so could you show me code that would help out?

Thanks in advance.

       *
      ***
     *****
    *******
   *********
  ***********
 *************
***************

Upvotes: 5

Views: 54896

Answers (14)

greyk0
greyk0

Reputation: 35

user_input = input("How many rows do you want to print? \n")
def stars(a):
    size = int(a)
    for i in range(1, size+1):
        print(" "*(size-i),"*"*(i*2-1))
    

stars(user_input)

How many rows do you want to print?
20
                    *
                   ***
                  *****
                 *******
                *********
               ***********
              *************
             ***************
            *****************
           *******************
          *********************
         ***********************
        *************************
       ***************************
      *****************************
     *******************************
    *********************************
   ***********************************
  *************************************
 ***************************************

Upvotes: 1

Vgowda
Vgowda

Reputation: 29

n=4
m = (2*n)-2
for i in range(0, m):
    for j in range(0, m):
       print(end=" ")
    m = m - 1 # decrementing m after each loop
    for j in range(0, i + 1):
    # printing full Triangle pyramid using stars
       print("* ", end=' ')
print(" ")  


  *   
 *  *   
*  *  *

Upvotes: 0

hansaplast
hansaplast

Reputation: 11573

If you like list comprehensions:

> n = 5
> print("\n".join((i*"*").center(n*2) for i in range(1, n*2, 2)))

    *
   ***
  *****
 *******
*********

Upvotes: 2

1737973
1737973

Reputation: 118

$ cat tree.py
def line(n, i):
    line = ''
    for j in range(n - i - 1):
        line += ' '
    for j in range(2 * i + 1):
        line += '*'
    for j in range(n - i - 1):
        line += ' '
    return line

def tree(n):
    for i in range(n):
        line_ = line(n, i)
        print(line_)

def run():
    tree(3)

if __name__ == '__main__':
    run()
$ python3 tree.py 
  *  
 *** 
*****
$ _

Upvotes: 0

sivaprasad
sivaprasad

Reputation: 1

#!/usr/bin/python
for i in range(1,6):
 for j in range(1,i+1):
   print "*",
 print

O/P: 
===
*
* *
* * *
* * * *
* * * * *

2) 
#!/usr/bin/python
for i in range(1,6):
 for j in range(1,7-i):
   print "*",
 print

O/P:
* * * * *
* * * *
* * *
* *
*

3)
#!/usr/bin/python
for i in range(1,6):
 for j in range(1,6-i):
   print "",
 for k in range(1,i+1):
  print "*",
 print

O/P:

    *
   * *
  * * *
 * * * *
* * * * *

4)
#!/usr/bin/python
for i in range(1,6):
 for j in range(1,1+i):
   print "",
 for k in range(1,7-i):
  print "*",
 print

O/P:
 * * * * *
  * * * *
   * * *
    * *
     *
5) 
#!/usr/bin/python
for i in range(1,6):
 for j in range(1,6-i):
   print "",
 for k in range(1,i+1):
  print "*",
 print
for i in range(1,5):
 for j in range(1,1+i):
   print "",
 for k in range(1,6-i):
  print "*",
 print


O/P:
    *
   * *
  * * *
 * * * *
* * * * *
 * * * *
  * * *
   * *
    *

Upvotes: -2

user3416044
user3416044

Reputation: 1

You can also draw a DIAMOND

def pyramid(r):
    for i in range(r):
        print ("  "*(r-i-1) + "*"*(2*i+1))
    for i in range(r-1,-1,-1):
        print ('  '*(r-i-1) + "*"*(2*i+1))

n=int(input("Enter no of rows:"))
pyramid(n)

pyramid(10)

                  *
                * * *
              * * * * *
            * * * * * * *
          * * * * * * * * *
        * * * * * * * * * * *
      * * * * * * * * * * * * *
    * * * * * * * * * * * * * * *
  * * * * * * * * * * * * * * * * *
* * * * * * * * * * * * * * * * * * *
* * * * * * * * * * * * * * * * * * *  
  * * * * * * * * * * * * * * * * *
    * * * * * * * * * * * * * * *
      * * * * * * * * * * * * *
        * * * * * * * * * * *
          * * * * * * * * *
            * * * * * * *
              * * * * *
                * * *
                  *
>>>

Upvotes: -1

Ramesh
Ramesh

Reputation: 19

Pyramid, Inverted Pyramid and Diamond Rhombus in Python:

Pyramid

i=1
j=5
while i<=5:
 print((j*' ')+i*'* ')
 j=j-1
 i=i+1




     * 
    * * 
   * * * 
  * * * * 
 * * * * *


Inverted Pyramid

i=1
j=5
while i<=5:
 print((i*' ')+j*'* ')
 j=j-1
 i=i+1

 * * * * * 
  * * * * 
   * * * 
    * * 
     * 

Diamond Rhombus

i=1
j=5
while i<=5:
 print((j*' ')+i*'* ')
 while j<=5 & i==5:
  print(((j+1)*' ')+(5-j)*'* ')
  j=j+1
 j=j-1
 i=i+1



     * 
    * * 
   * * * 
  * * * * 
 * * * * * 
  * * * * 
   * * * 
    * * 
     *

Upvotes: 1

Rohit
Rohit

Reputation: 4158

Though I am very much new to python, so here is how I solved it:

k=int(input("Enter the number of rows"))
for i in range(1,k):
    print(' '*(k-i),'* '*(i))

      * 
     * * 
    * * * 
   * * * * 
  * * * * * 
 * * * * * * 
* * * * * * *

Upvotes: -1

John Don
John Don

Reputation: 97

def pyramid(row):
       for n in range(row):
              print(' '*(n+1)+' '*(2*(row-n))+'x'+'x'*(2*n+1))

pyramid(row=8)

Upvotes: -1

Chaos Manor
Chaos Manor

Reputation: 1220

I would suggest the following function:

def pyramid(rows=8):
    pyramid_width = rows * 2
    for asterisks in range(1, pyramid_width, 2):
        print("{0:^{1}}".format("*" * asterisks, pyramid_width))

Then try with:

pyramid()

or with:

pyramid(4)

Upvotes: 2

kleytont
kleytont

Reputation: 51

Or you could try:

def pyramid(size=8):
    for i in range(size):
        row = '*'*(2*i+1)
        print row.center(2*size)

Upvotes: 5

Blender
Blender

Reputation: 298106

This code isn't very pythonic, but it's readable. Look at Hugh Bothewell's answer for a compact pyramid drawing function:

def drawPyramid(rows):
  result = ''

  for i in xrange(rows):
    row = ''
    row += ' ' * (rows - i - 1)
    row += '*' * (2 * i + 1)

    result += row + '\n'

  return result

print drawPyramid(20)

Upvotes: 2

Hugh Bothwell
Hugh Bothwell

Reputation: 56624

def pyramid(rows=8):
    for i in range(rows):
        print ' '*(rows-i-1) + '*'*(2*i+1)

pyramid(8)
       *
      ***
     *****
    *******
   *********
  ***********
 *************
***************

pyramid(12)
           *
          ***
         *****
        *******
       *********
      ***********
     *************
    ***************
   *****************
  *******************
 *********************
***********************

Upvotes: 22

kelloti
kelloti

Reputation: 8951

You can use string multiplication like so:

>>> for i in range(size):
...     print '%s%s'%(' '*(size-(i-1)),'*'*((i*2)-1))
...

Upvotes: 3

Related Questions